I have a Wisconsin engine, model AKS. It has a magneto on it (no spark) and a natural Gas regulator on the carb. The guy who sold it to Dad 30 yrs ago said it had been used in the gas & oil fields.

Now for the questions:
1. are the mag parts impossible to find?
2. What is the HP of this engine. A google search shows a couple of answers 3, 3.5 & 5 hp
3. that gear box, (IDK ratio) what would that be good for?

My Hair-brained long-term scheme is to remotor a MF7 or something with it and run it off LP. I know I will have to do something with the orifice.

Repair parts for the mag are out there. If a good cleaning of the points doesn't get you a spark and you need pieces check with NAPA they may be able to get you some pieces, if not these folks should be able to help you out Mainely Magnetos by Belanger's Auto Electric I can vouch for them as good folks who know their stuff.